最小流量阀原理

1、 HyCon Anti-Cavitation Trim 1996-01-01 / TMi Main Menu Inlet Pressure Outlet Pressure Cavitation Cavitation Phenomenon on the valve plug Generate of Bubble Cavitation Phenomenon on the valve plug Generate of Bubble Rapid Damage on the seat surface Bubble attached on metal surface Crash of Bubble Ene

2、rgy of Cavitation about 6000-7000 Kg/cm2 Damage=K V6-8 P2 Vena Contractor Vapor Press. P1 Anti-Cavitation Design Conventional Valve Trim All HyCon Trim Hybrid HyCon Trim Soft Seat HyCon Trim Wide range selection of HyCon Trim Seating Surface of Metal Seat type Valve 32 deg. 30 deg. Plug Seat Leakage

3、 Class of Metal Seat Trim Min. Class V.5x10-12 m3/sec/mm/bar Ex. D.P=300bar, Seat Dia.=100mm allowable leakage is 9cc/min Metal Particle Seat Soft Seat HyCon TrimSoft Seat HyCon Trim Plug Soft Seat Metal Seat HyCon Cage Close P1 ANSI B16.104 Leakage Class VI Soft Seat HyCon TrimSoft Seat HyCon Trim

4、Plug Soft Seat Metal Seat Close P1 ANSI B16.104 Leakage Class VI HyCon Cage Soft Seat HyCon TrimSoft Seat HyCon Trim Plug Soft Seat Metal Seat Open P1 P1 HyCon Cage Wire Drawing on Plug Surface Protection of Valve Body Body Final Velocity=Vo x tan 20 x L1 tan 20 x L2 2 HyCon Trim Flow to Open Flow to Close Vibration Occur Bath Tub Stopper Effect Uniform Tightness Seat Unbalanced Tightness Seat Centering and Seating Performance